51.   A version is used by American Express to reduce fraud losses.

52.   Do not use earlier versions.

53.   Future tests of the airplane will use versions with folding wings and, eventually, its own propeller propulsion system.

54.   In a continuous cat-and-mouse game, athletes have been able to keep a step ahead of drug-testers by using synthetic versions of naturally occurring substances.

55.   It began in southern Spain in the fifth century, when the Catholic church used a version of the dance to convert pagans to Christianity.

56.   Sun claims that Microsoft has used a version of the so-called Java language in its new Internet Explorer software that only works on computers running on Windows operating software.

57.   The hot line will allow informants to receive cash rewards for calling in the names of businesses suspected of selling or using pirated versions of Microsoft software products.

58.   The first version was used in the Clarion AutoPC, a voice-controlled device that combined elements of a car stereo, cell phone and personal digital assistant.

59.   The naval version could be used as a surface-to-air missile against aircraft and as a counter to sea-skimming missiles, the ministry said in a statement.

60.   The Pentagon plans to use versions of the Joint Strike Fighter to replace various older fighter planes used by the Air Force, Navy and Marine Corps.